Is bi amping worth it ?

New thinking ? 
 

the subwoofer world is quite confusing . so I have  left that decision alone for a bit.  I have recently read where bi amping the khorns could give me the little more bass punch I am looking for. ?    The 601 mono-blocks certainly have enough power but I have a tube pre amp C-2300 that does not separate bass and treble signals so would need to add an external crossover.  
 

anyone have any experience with this ? Is this worth the effort ?  And if so any recommendations on the external crossover ? 
 

thanks again everyone. I greatly appreciate all input from this forum.